Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleMethoden kontrollierter klinischer Studien.AuthorsBrosteanu, O.; Löffler, M.PublicationDer Internist, 1998, Vol 39, Issue 9, p909ISSN0020-9554Publication typeArticleDOI10.1007/s001080050260